Another neat tool from a PSM reader. This one is from Jeremy Faludi and friends, who are working to quantify and map which parts of a city are greener than others. Sort of like WalkScore, but this one weighs trees instead of grocery stores.
So far they only have data for San Francisco and Seattle, but they’re working on obtaining more. If you’re a GIS person or have data you could donate, shoot them a note. I’m sure they’ll be happy you wrote.